Size dependent oxygen buffering capacity of ceria nanocrystals

作者:Xu Jiahui; Harmer Jeffrey; Li Guoqiang; Chapman Thomas; Collier Paul; Longworth Sarennah; Tsang Shik Chi*
来源:Chemical communications, 2010, 46(11): 1887-1889.
DOI:10.1039/b923780a

摘要

The structural, chemical and electronic changes of ceria as a function of decreasing particle size have been studied: at sizes below 5 nm the total amount of reducible oxygen dramatically increases due to superoxide formation on the ceria surface, a result indicative of a size dependent oxygen buffering capacity.

  • 出版日期2010